Free DevOps Toolkit
DevOps Toolkit
Live Infrastructure Diagnostics
Real, live checks against any public domain — DNS-over-HTTPS, raw TLS/WHOIS sockets and direct HTTP inspection. No mock data, ever.
DNS Lookup
Fetch A, AAAA, CNAME, MX, NS, TXT, SOA and CAA records for any domain.
Enter a domain above to run a real, live check.
FAQ
Frequently Asked Questions
Yes, every tool — DNS Lookup, Mail Health Checker, SSL Checker, WHOIS Lookup, HTTP Header Checker and Technology Detector — is free with no rate-limited paywall.